package com.sh169.util;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Md5 {
	public static String encode(String code) {
		if(code== null || code.length()==0)return "";
		MessageDigest messageDigest = null;
		try {
			messageDigest = MessageDigest.getInstance("MD5");

			messageDigest.reset();

			messageDigest.update(code.getBytes("UTF-8"));
		} catch (NoSuchAlgorithmException e) {
			return "";
		} catch (UnsupportedEncodingException e) {
			return "";
		}

		byte[] byteArray = messageDigest.digest();

		StringBuffer md5StrBuff = new StringBuffer();

		for (int i = 0; i < byteArray.length; i++) {
			if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)
				md5StrBuff.append("0").append(
						Integer.toHexString(0xFF & byteArray[i]));
			else
				md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
		}
		return md5StrBuff.toString();
	}
}
